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V <br />Memo to Jeff Clap ton - 2 - February 23, 1990 <br />Please indicate, on the exhibit, when the southern topsoil stockpile area <br />will be completed in regard to topsoil placement. <br />The lines that delineate topsoil replacement around the Moffat Area <br />sediment pond are somewhat unclear. Are all areas except for the haul <br />road, sediment pond, and access roads to the pond and the Trout Creek <br />Diversion to be topsoiled by the end of year 7? <br />Please indicate where topsoil for covering the regraded sediment pond <br />will be stored. <br />Even with the minor clean up questions noted, Exhibit 4.3-1 is a pretty good <br />approximation of a comprehensive topsoil removal and replacement plan. If <br />nothing else, it will allow us to judge approximately how far ahead of the <br />actual mine pit topsoil removal should be and how far behind the mine pit <br />topsoil replacement should be. <br />I also compared Table 4.3-2 (Moffat Area Topsoil Removal and Replacement) to <br />my own figures calculated from Exhibits 4.3-1 and 4.3-2 and Table 4.3-2 <br />(Moffat Area Soil Types and Stripping Depths). The data I generated is in <br />fairly close agreement with P&M's Table 4.3-2. The Exhibits and raw data that <br />were used for this comparison are available in my office if you need them. <br />cc: Susan Mowry <br />4469E/scg <br />